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Marquise|Lab Grown|IGI

1.05ct E IF Marquise Lab Grown Diamond

ID • E/IF • IGI LG813663876

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG813663876

Diamond specifications and retailer prices

From $263 USD
As of October 30, 2026
Save $1,417 USD (84%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $1,680 USD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.05ct lab-grown marquise diamond

This 1.05ct lab-grown marquise sits in the classic one-carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG813663876 or 813663876. Listed at 23 retailers as of October 30, 2026, with prices from $263 to $1,680, a $1,417 spread on the same certified stone. Brilliant Earth lists it at $1,680. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.05
Carat
E
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle41.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG813663876
Dimensions10.65 × 5.25 × 3.36 mm
L/W Ratio2.03
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.65 mm5.25 mm1.05 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG813663876
Side View
Table 58.0%Crown 33.9°Girdle: MED-STKPavilion 41.5°Culet: NoneDepth 64.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $1,680 USD|Low: $263 USD|High: $1,930 USD|Avg: $857 USD|-13.0%
Brilliant Earth
Retailer 2
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Retailer 23
October 30, 2026
Retailer 13$263 USD
Retailer 4$294 USD
Retailer 22$326 USD
Retailer 12$327 USD
Retailer 14$349 USD
Retailer 17$438 USD
Retailer 3$485 USD
Retailer 2$570 USD
Retailer 9$594 USD
Retailer 8$600 USD
Retailer 20$621 USD
Retailer 19$623 USD
Retailer 7$850 USD
Retailer 6$1,047 USD
Retailer 11$1,073 USD
Retailer 21$1,098 USD
Retailer 15$1,108 USD
Retailer 23$1,147 USD
Retailer 10$1,155 USD
Retailer 5$1,312 USD
Retailer 16$1,356 USD
Retailer 18$1,393 USD
Brilliant Earth$1,680 USD

34 data points across 23 retailers

23 retailers$263 USD to $1,680 USD

A
Cheapest Retailer
-
$263 USD
A
Retailer 2
-
$294 USD
View
Final sale: no returns
A
Retailer 3
-
$326 USD
View
A
Retailer 4
-
$327 USD
View
A
Retailer 5
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$349 USD
View
A
Retailer 6
-
$438 USD
View
A
Retailer 7
-
$485 USD
View
A
Retailer 8
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$570 USD
View
A
Retailer 9
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$594 USD
€566 EUR
View
A
Retailer 10
-
$600 USD
ZAR 9,693 ZAR
View
A
Retailer 11
-
$621 USD
View
A
Retailer 12
-
$623 USD
£491 GBP
View
B+
Retailer 13
-
$850 USD
A$1,307 AUD
View
B+
Retailer 14
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$1,047 USD
View
B
Retailer 15
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$1,073 USD
View
B+
Retailer 16
-
$1,098 USD
View
B+
Retailer 17
-
$1,108 USD
A$1,705 AUD
View
B+
Retailer 18
-
$1,147 USD
View
B
Retailer 19
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$1,155 USD
View
B+
Retailer 20
-
$1,312 USD
£1,033 GBP
View
B
Retailer 21
-
$1,356 USD
£1,068 GBP
View
B
Retailer 22
-
$1,393 USD
View
Most Expensive
B
Brilliant Earth
20706548A · Oct 30
$1,680 USD
View
22 more retailers have this diamond
Prices start from $263 USDSave up to $1,417 USD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.05ct Marquise
$263 USD